45.0 degrees by 0.047 in deep chamfer on edge of both sides
A transparent item of a predetermined size that permits unobstructed and undistorted view of a desired area. It may include a frame, have reference markings, grid lines and may be heat strengthened and/or tinted. It is generally used where safety, security, and/or the restriction of foreign matter are required, such as the visual examination of the inside of pressurized tanks, liquid sights, controlled liquid flow, and inspection of equipment enclosed in a housing. See window (as modified); scale, cathode ray tube; scale, plotting; window, metal; window, wood; and window panel, aircraft.
Classification: Pressed or molded glass articles, wired or not, for building or construction;leaded glass windows etc; formed multicellular or foam glass
NSN 5935-01-163-4011
NSN 6220-00-191-4887
NSN 5920-00-212-4387
NSN 5925-00-499-2160
NSN 5835-01-426-6573
NSN 5930-01-417-6969
NSN 5990-00-615-7111
NSN 5999-00-476-4340
NSN 5905-00-621-8968
NSN 5985-01-312-1166
NSN 5835-00-145-8926
NSN 5999-01-454-3708